Centrifugal pump for abstracting air and water from surface condensers.



W. [UE-SER. GENTRIFUGAL FUMP POE ABSTRACTING All?. AND 'WATER FROMSURFACE GONDENSERS.

\ APPLICATION NLRB snmzr. 1909.

J.02O,7O1.r Patented Mar. 19, 1912.

NSZENTUR 2.0 WZTNESSE'S' I/I/AL TER -KLESER mwxm.

l "mirra srarn ATElil'l OFFICE WALTER KIE'SER, 0F BERLIN, GERMANY,ASSIGNOR T0 GENERAL ELECTRIC COMPANY,

A. CORPORATION yOIF NEW YORK.

CENTRIFUGAL PUMP FOB ABSTRACTING AIR AND WATER FROM SURFACE CONDENSERS.I

To all fao/wm, t mayooncem:

Be it known that I, lVALrnn Kinsnn, a/ citizen of Switzerland, residingat Berlin, Germany, have invented certain new and useful Improvements inCentrifugal Pumps for Abstracting Air and lVater from SurfaceCondensers, of which the following' is a specification.

This invention relates 'to centrifugal pumps, and especially tothose'used in connection with 'surface` plants. y

The object of the'invention is to abstract etfectually from thecondenser fthe'fwater of condensation and the air. `This-1s accomplichedin lthe p'r'esent instance by two centrifugal pumps,l one for the waterand the other for the air, arranged upon a common vertical shaft andsupplied by a single c0n duit which conveys both the water and the air.rl`he air-pump is located above the water pump, and is ot' the throwingtype, that is, one in which water ejected by cen-- trifugal force fromthe periphery of a rapidly rotating runner, crosses an air gap between-said runner and a stationary concentric guidering havingroutwardly-extending passages through which said-water moves in the formof' pistons, .with short columns of nir pocketed between, them. Theair-gap opens downwardly in order to communicate with the upper part ofthe horizontal conduit through .which the air and water flow from the,condenser'. The conduit is large enough to permit the air to rise to itstop where it. will readily enter the gap in the air-pump and be trappedby thel water pistons. The water pump is below the air pump and receivesthe water flowingr through the lower part of the conduit. This pump ispreferably ot' the ordinary rotary or centrifugal type, with radial `orcurved varies on the periphery of a Wheel or wheels.V there may be aplurality of such wheels, one above the other, to handle successively`greater quantities of water. The air and water pumps have independent;delivery pi pes. The pump is driven in manner, preferably by an electricmotor supcondensers in steam' any suitable Speoilcation of LettersPatent. Application illeyd September 2, 1909.

-standards 2 rising Patented Mar. 19, 1912. Serial No. 515,905.

ported above Said ump and having its rotor mounted on the siai't of thepump.

The accompanying".drawing is an elevation, partly in section, o'f myimproved pump.

The driving motor l is supported on from a hollow base v'3 in which arehoused the air pump and the vwater pump. The vertical shalt 4 of themotor is; journaled in bearings 5, and is ex! tended down through thebase to a suitable step bearing,r tl. The runner or-impeller 7 of theair pump is scoured to the shaft just below the top of the base, andreceives its throwing water from a chamber t3 irrimediately above it,which is :supplied through a pipe l) and delivers through a mouth 10concentric with the shaft. as the impeller is the stationary guidingmeans lll whose out',wardlv-cxteudingl passages open into an encirclingchamber 12- which has an exit 13. i ery of the impeller and the vinnercdgcoi" the guiding means is an air gap Il which opens downwardly into alarge conduit l5 through which the air and the water ol condensationflow from the condenser. The dimensions of this conduit are such that itserves as a separator .for the air and the water, the eircollecting atits top where it can readily enter the air gap 14 and be caught by thethrowing water ejected by the runner or impeller and driven ott throughthe chamber 12 to the exit 13.

Situated 'within the'conduit 15 is the casing l() of lthe rotary waterpump, having a lateral opening 17 to admit the water thereto. Thiscasing is concentric with and has at its upper and lower 'ends openingsin which are located the. ump wheels 18 and 19, each provided wlthpropeller blades to urge the water through said openings. The loweropening is at orbelow the Between the periphlevel ot' the bottom ot' theconduit, while the upper opening is near the top ol the conduit.' ,ltfollows that the lower wheel will alwaysl bein service, while the upperone will come into use automatically when the conduit runs nearly fullo1'v water. lf'desircd, a

ln the same plane` the shaft greater number of wheels may beused, but I-prefer two. The upper whe-el 18 is preferably larger than the lowcrgtogive it a greater peripheral speed, so that may be yable to handle allthe water comingto 1t when the conduit iills up. Each wheel deliversinto an annular chamber 20, the two chamberfibeing connected by a duct21 and discharginglat The operation is obvious from the foregoingdescription, but may be b rlely vrecapitulated as follows: lhe throwingwater is supplied to the ruimer 7 from above through the pipe Q and themouth 10, while theair and water of condensation flow along the conduitwhich is common to both pumps. The air rising to the top of the conduitpasses up through the gap 14 in front of the delivery of the runner 7,so that said air is forced by the throwing water into the passages ofthe guide ring 11, where it compressed and is carried oft' by the exit13. The water' of condensation flowing along the bottom of the conduit15 is, ac-

cording to the amount thereof, forced either through the lower-'openingof the casing 16 by the wheel'lf), or through the upperopenwheel 1S,entering the chambers 20 and passing off by the pipes 21 and 22.r Theadvantage 'of this constructionv is that only one supply conduit isneeded, and moreover',l either onle'ior more water pump wheels "aref'automatically brought into service according-to the quantity of water tobehand d.

The broadlll-eaof a centrifugal air pumpand a rotary water pump with acommon conduit means of supplying air to the air pump and water to thewater pump, is not claimed herein because it forms the subject matterofmy application for Letters Patent, Serial No. 515,904, led September2,

In accordance with the provisions of the patent statutes, I havedescribed the principle of operation' of my invention together with theapparatus which I now consider to represent the best embodiment thereof;but I `desire to have it understood that the-apparatus shown is onlyillustrative, and that the invention can be carried out by lother means.

What I claim as new and desire to secure by Letters Patent of the UnitedStates, is

l. The combination with -a centrifugal air ump, of a rotary water pump,said pumps aving a common vertical axis, and a com mon horizontalconduit for supplying air to the air pump and water to the water pump,said air pump being located adjacent the upper portion Aof conduit andreceiving air therefrom and the water pump being located Lucanoradjacent the lower receiving water therefrom.

2. The combination with a centrifugal aii'pilriip, of a rotary waterpump `located bclow the air-pump, and a common conduit supplying'waterto the lower pump and air to the upper pump.

3. The .combination with a centrifugal water-throwing runner, of aguiding means concentric therewith, below said runner, and a commonconduit communicating at its upper part with the gap between the runner'and the guiding means, and at its lower part with the water pump.

4. In combination, a horizontal conduit conveying air and water ofcondensation, said conduit serving to separate the air and water, theair collecting at the top of the conduit and the water at the lowerportion of said conduit, a centrifugal air pump mounted on the top ofthe conduit to draw air therefrom, and a centrifugal water pumpconnected to the lower portion of the conduit for removing watertherefrom.

5. In combination, a centrifugal air pump a rotary water pump having itsaxis vertical, a centrifugal Water y pump in line with the air pump andarranged below it, and a horizontal conduit conveying air and water ofcondensation whose outletend enters the region between said pumps, theair and water'and deliver air-to the air pump and water to the waterpump.

6. The combination with a conduit conveying air and water ofcondensation, of a centrifugal water-throwing air pump vcommunicatingwith the upper part of said conduit, a rotary water pump communicatingwith the lower part thereof, and comprising a lurality of wheels, oneabove the other.-

2. The combination with a conduit conveying air and water ofcondensation, of a vertical shaft, a centrifugal lwater-throwingair-pump runner on said shaft above ,said

conduit and communicating therewith, and av rotary water pump having' awheel at or below the level ofthe bottom of said `conduit andcommunicating therewith.

8. The combination with a conduit con*- veying air and water ofcondensation, of a vertical shaft, a centrifugal water-throwing air-pumprunner on Said shaft above said conduit andfcommunicating therewith, aro,- tary water pump having a wheel at or below the level of the bottomof said conduit and communicating therewith, and ay secondwheel at ornear the level of thev upper part4 of said conduit. 9. The combinationwith a horizontal con` the conduit serving to separate duit conveyingair and water of condensation, of a Vertical shaft passing through thesame, a centrifugal water-throwing air-l vpump runner on. said shaftabove said con- In Witness whereof, I have hereunto set duit andcommunicating with the upper my hand. part thereof, a casing in saidconduit com- WALTER KIFSFR munieatng therewith, and two rotary WaterA JJ 5 pump wheels on said shaft Within said eas- \Vitnesses:

ing, one Lnear the bottom of said conduit Omo GLWING,

mui one near the upper 'part thereof. FRIEDRICH SASS.,

